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mylen [45]
3 years ago
12

Above are two different models of the same diamond-shaped platform. If the length of side a is 3 cm, what is the length of side

b?
Mathematics
2 answers:
tatuchka [14]3 years ago
6 0

Answer:

10cm

Step-by-step explanation:

Nezavi [6.7K]3 years ago
3 0
The length of side b is also probably 3cm, because thinking of a diamond shape, all of the sides are equal and It give you no other measurments
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Solve 2x2 + 20x = −38.
Makovka662 [10]

Answer:

Correct Answer is C(−5 ±square root 6)

Step-by-step explanation:

2x^2+20x+38=0

2(x^2+10x+19)=0

x^2+10x+19=0

This is a quadratic equation here we have used following formula to find the roots of this equation

x=-b−±square root (b^2-4*a*c))/2*a......(1)

Here,

a=1

b=10

c=19

put values of a, b and c in equation (1)

x=(-10 ±square root(10^2-4*1*19))/2*1

x=(-10 ±square root(100-76))/2

x=(-10 ±square root(24))/2

x=(-10 ±square root(2*2*6))/2

x=(-10 ±2square root(6))/2

x=2(-5 ±square root(6))/2

x=-5 ±square root(6)


Hope this answer will help you

6 0
3 years ago
Which statements are true?
GaryK [48]
<h3>Answer:</h3><h3>There are 3 true statements, and the true statements are: </h3><h3>choice A, choice C, choice D</h3>

======================================================

Explanation:

A. True. All triangles have 3 straight sides and 3 angles.

B. False. All triangles are polygons. A polygon is just a collection of line segments glued together to form a closed shape.

C. True. A plane figure is a flat shape.

D. True. See choice A.

E. False. Some triangles do not have one right angle. Example: obtuse triangles do not have any right angles.

7 0
3 years ago
1/x-4 + 1/x+3 = x-6/ x^2-x-12
STALIN [3.7K]
There is no solution
7 0
3 years ago
4. Lupe knows that there are 4 quarts in a gallon. She wants to convert 6 quarts to gallons, but cannot decide if she should mul
tangare [24]

Answer:

Step-by-step explanation:

4 quarts=1 gallon

1 quart=1/4 gallon

6 quarts 1/4×6=6/4 gallons=3/2 gallons =1  1/2 gallons

or we can say 4 quarts=1 gallon

2 quarts=1/2 gallon

(4+2=6)quarts=(1+1/2)=1 1/2 gallon.

3 0
3 years ago
A parabolic listening device is shaped such that the depth of the bowl depends on its radius and can be represented by the curve
Rus_ich [418]

Answer:

7.428 inches

Step-by-step explanation:

4 0
3 years ago
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